Sugatsune Industrial Co., Ltd.

Kotobuki Corporation

Ken Tsuneki

Kazuyoshi Ohshima

Tatsuya Hayakawa

Yojiro Nakayama

Seiji Sugasawara

Seiichiro Tamura

Kazuyosh Ohshima

Seiichiroh Tamura

Youjirou Nakayama

A damper device for an automatic folding chair enables the seat of the chair to be turned downward to a ready-for use position without being subjected to any braking force when it is lightly pushed down. When the use leaves the seat in the ready-for-use position, it automatically and slowly returns to an upright position under a braking effort exerted thereto. Said damper device comprises a power unit 2 and a damper unit 1 for raising the seat E slowly from the ready-for-use position to the upright position, said damper unit 1 comprising a casing 3 that rotates around a fixed shaft 4 of the chair in association with the rising movement of the seat E, a movable sleeve 7 rotatably disposed within said casing 3, viscous fluid C filled in the space between the movable sleeve 7 and the casing 3 and a one-way clutch 10 constituted by a coil spring that functionally couples the movable sleeve 7 and the fixed shaft 4 when the seat E is turned upward by the resilient force of the power unit 2 and releases the functional coupling of the movable sleeve 7 and the fixed shaft 4 when the seat E is turned downward.

Damper device for an automatic folding chair

There is provided a lift coat hanger comprising an ingenious damper that can be selectively operated with a view to decelerate the rotary motion of the arm and softly stopping it as it comes to the open or closed position, while the construction of the overall lift coat hanger is made rather simple and hence can be realized at a reduced cost.

Coat lift hanger

Multi-disc damper using viscous fluid

The hinge is particularly adapted to permit a relatively thick door to be swung open without interference from the surrounding door mounting frame. A pair of arms pivotally connect the door to the frame, with the inner end of one of the arms being mounted on pin means having an axis about which the door rotates. Through the provision of various embodiments of connecting means and guide means, the pin means connecting the inner arm to the body travels in an arcuate, outward path when the door is opened, thereby moving the plane of the entire door outwardly to permit the room necessary to accommodate essentially full opening of the door. The pin means, during its arcuate movement, is guided by various forms of guide means to precisely define the arcuate path of travel.

Hinge

A hinge mounting plate is used for pivotally securing the supporting arm of a door to a supporting arm for a furniture or the like. This hinge mounting plate incorporates a base plate, a control plate, and a hinge supporting arm. The base plate is secured directly to the supporting wall. The control plate is superimposed on the base plate to be slidable in the direction perpendicular to the longitudinal direction. The hinge supporting arm is formed in an inverted U shape in cross section with a top wall and upper and lower side walls. The hinge mounting plate thus constructed further comprises a longitudinal and lateral control plate superimposed on the surface of the control plate and perforated with a long hole for guiding the control plate, and a lateral control screw pivotally securing both the rear side ends of the longitudinal and lateral control plate and the hinge supporting arm at the front side end of the control plate. Thus, the hinge mounting plate can be adjusted longitudinally, laterally and elevationally in the relative relationship between the supporting wall and the door.

Hinge mounting plate

Growing community of inventors

Tokyo, Japan

Ken Tsuneki